Country Information

CountryUnited States
ISO CodeUS / USA
LanguageEnglish
Total Records42,605

United States uses a numeric code of 5 (or 5+4) digits (e.g. 10001). ZIP Code (5 digits) with optional ZIP+4 extension.

This database currently holds 42,605 ZIP Codes ranging from 00501 to 99929, linked to 0 building and address records. Because a single ZIP Code can cover more than one locality or delivery point, the lookup below groups addresses by code and lets you drill into the individual records.

Postal codes matter well beyond mail delivery. Couriers, e-commerce checkout forms and address autocomplete tools rely on the ZIP Code to route a parcel and to verify that the stated address matches the code. Addresses here are organised as State → County → City. The code itself is structured as ZIP Code → ZIP+4 → Delivery Point, which is postal geography and not the same as the administrative hierarchy. When you look up a code here, treat the associated name as a reference point rather than a full postal address — always confirm the street and house number with the sender or recipient before shipping.

Data source: a third-party open dataset. This is an imported reference dataset, not a live government feed; CodeReff does not independently verify each record, so codes may have changed since the snapshot was taken. Use the search box to look up a specific code, or browse the paginated table below.

United States Postcode Data

42,605 postcode found

Postal Code State County City Records
57467 South Dakota Hand Orient 1
57468 South Dakota Day Pierpont 1
57469 South Dakota Spink Redfield 1
57470 South Dakota Faulk Rockham 1
57471 South Dakota Edmunds Roscoe 1
57472 South Dakota Walworth Selby 1
57473 South Dakota Faulk Seneca 1
57474 South Dakota Brown Stratford 1
57475 South Dakota Potter Tolstoy 1
57476 South Dakota Spink Tulare 1
57477 South Dakota Spink Turton 1
57479 South Dakota Brown Warner 1
57481 South Dakota Brown Westport 1
57501 South Dakota Hughes Pierre 1
57520 South Dakota Sully Agar 1
57521 South Dakota Jackson Belvidere 1
57522 South Dakota Hughes Blunt 1
57523 South Dakota Gregory Burke 1
57528 South Dakota Tripp Colome 1
57529 South Dakota Gregory Dallas 1
57531 South Dakota Jones Draper 1
57532 South Dakota Stanley Fort Pierre 1
57533 South Dakota Gregory Gregory 1
57534 South Dakota Tripp Hamill 1
57536 South Dakota Hughes Harrold 1
57537 South Dakota Stanley Hayes 1
57538 South Dakota Gregory Herrick 1
57540 South Dakota Hyde Holabird 1
57541 South Dakota Tripp Ideal 1
57542 South Dakota Lyman Iona 1
57543 South Dakota Jackson Kadoka 1
57544 South Dakota Lyman Kennebec 1
57547 South Dakota Jackson Long Valley 1
57548 South Dakota Lyman Lower Brule 1
57551 South Dakota Bennett Martin 1
57552 South Dakota Haakon Midland 1
57553 South Dakota Haakon Milesville 1
57555 South Dakota Todd Mission 1
57559 South Dakota Jones Murdo 1
57560 South Dakota Mellette Norris 1
57562 South Dakota Jones Okaton 1
57563 South Dakota Todd Okreek 1
57564 South Dakota Sully Onida 1
57566 South Dakota Todd Parmelee 1
57567 South Dakota Haakon Philip 1
57568 South Dakota Lyman Presho 1
57569 South Dakota Lyman Reliance 1
57570 South Dakota Todd Rosebud 1
57571 South Dakota Gregory Saint Charles 1
57572 South Dakota Todd Saint Francis 1

Postcodes by Region

Postcodes by City

Frequently Asked Questions

United States uses a numeric code of 5 (or 5+4) digits (e.g. 10001). ZIP Code (5 digits) with optional ZIP+4 extension.
Yes. United States postal codes are a plain numeric string, so a leading zero is part of the code itself. A code beginning with 0 must be written and stored with that zero — it is not the same as the same digits without it.
42,605 This database currently lists
The records are imported from a third-party open dataset, an open reference dataset. CodeReff does not independently verify each entry, so use the information as a reference rather than an official confirmation.
Enter a full or partial postal code, or a building or street name, in the search box above. You can also browse the paginated table and open any code to see its building and address records.
Information provided on CodeReff is for reference purposes only. Always verify financial and banking details with the relevant institution before use.